SERIES PREMIERE: This one’s a blast. Based on the novels by Luke Jennings, Killing Eve is a tale of mutual obsession – two characters singularly fascinated by murder, and, eventually, by one another. Jodie Comer plays Villanelle, an assassin who’s a sociopath, traveling across Europe to kill for money, and for the thrill of it. And Sandra Oh, from Grey’s Anatomy and Sideways, plays Eve, a deskbound British agent whose insights into this elusive killer land her a promotion